1. Adams R, Chimowitz J, Alpert J et al. Coronary risk evaluation in patients with transient ischemic attack and ischemic stroke: a scientific statement for healthcare professionals from the Stroke Council and the Council on Clinical Cardiology of the American Heart Association/American Stroke Association. Circulation 2003;108:1278–1290.
2. Bosmans H, Marchal G, Van Hecke P, et al. MRA review. Clin Imaging 1992;16:152–167.
3. Nemeth J. Physical exam myths: listening for carotid artery bruits in stroke patients. CJEM 2007;9(5):368–370.
4. Henderson RD, Eliasziw M, Fox AJ et al. Angiographically defined collateral circulation and risk of stroke in patients with severe carotid stenosis. North American Symptomatic Carotid Endarterectomy Trial (NASCET) Group. Stroke 2000;31:128–132.
5. Wardlaw JM, Chappell FM, Best JK et al. Non-invasive imaging compared with intra-arterial angiography in the diagnosis of symptomatic carotid stenosis: a meta analysis. Lancet 2006;367:1503–1512.